Its been months now...and my list is still not even half of what it use to be.
Much was restored, but unfortunately, the disk that held our lists was irreparable. MGOs developers worked hard, but, alas, they were only able to retrieve some of your books if you rated or tagged them. Those that were able to be recovered were sent to your Already Read list. You'll have to sort that list as you start to rebuild all your lists.
Rebuilding Your Lists:
1. Use your previous (old) notifications to add to your reading lists. (This has been tested and works to start receiving notices again.)
2. If you have any bookmarks -- re-add them to your lists.
3. Use any previous comments (topics) you've left on stories here to help your lists.
4. Use your history (clock icon) to add to your lists. (If you see nothing, click the "Show All" link. It may show something.)
5. If you have a favorite author, find a story written by them and start adding the comics listed under their name.
6. If you follow someone look through their lists and start adding them to your lists from there.
7. If you have a favorite unofficial scan group -- use their website to add to your list. If they are defunct then use Baka Manga or another avenue to see what series, they worked on to add to your lists.
Below was created by another user to help save your lists. I use a spreadsheet, so I haven't tested this.
https://docs.google.com/document/d/14Drj0CviUhrAmZlU-DC-AtxGFQoH1_PYQ81b2Vzu82w/edit?tab=t.0#heading=h.acjitdw8v0h
My list is still gone sigh
So is everyone else's but dw. Read this https://www.mangago.me/home/mangatopic/21080691

Why is mangago filled with trolls now? There are repeats of already uploaded chapters and false uploads. I thought 7 manga had updated when I got the notification but they were all fakes... sigh.
right! there are like 3 scan groups uploading one chapter at once and the trolls...